Is it a mental thing if it's impossible for me to sleep at night when my husband is snoring? i can be dead asleep & it wakes me up & prevents me from going back to sleep?

Most likely he has obstructive sleep apnea. Have him see a dr. It it is a CPAP will let you and he sleep better.

This isn't a "mental thing" at all. This is his problem, not yours. And it could be serious: snoring can be a sign of serious health problems, like sleep apnea, especially if he is overweight. He is the one who needs to see a doctor, not you. Good luck to both of you.